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  4. 甘油/DMF混合体系中TiO2纳米管阵列的制备及表征

材料导报, 2014, 28(16): 13-18. doi: 10.11896/j.issn.1005-023X.2014.16.004

甘油/DMF混合体系中TiO2纳米管阵列的制备及表征

刘榕芳 1, , 李萍 2, , 王章 3, , 梁建鹤 4, , 肖秀峰 5,

1.福建师范大学化学与化工学院,福州,350007

2.福建师范大学化学与化工学院,福州,350007

3.福建师范大学化学与化工学院,福州,350007

4.福建师范大学化学与化工学院,福州,350007

5.福建师范大学化学与化工学院,福州,350007

基金项目:   福建基金项目(2011J06019,2012J01194)   国家自然科学基金(30970887)  

关键词： TiO2纳米管阵列 , 阳极氧化 , 甘油/DMF混合溶液

Preparation and Characterization of TiO2 Nanotube Arrays in Glycerin/DMF Mixed Electrolyte

Keywords： TiO2 nanotube arrays , anodization , glycerin/DMF mixed electrolyte

采用电化学阳极氧化法,以甘油/DMF混合溶液为电解质,在纯钛表面制备了一层排列紧密、结构规整的TiO2纳米管阵列.讨论了氧化电压、电解液中DMF比例、电解液中水含量和电解液重复使用对TiO2纳米管阵列形貌的影响,并且从阳极氧化过程中电流-时间曲线出发分析了混合体系中阳极氧化的形成特征.研究表明,氧化电压越高所制备的纳米管管径越大,但是管长与氧化电压之间不呈线性关系;电解液中DMF比例增加不利于纳米管形成;电解液中水含量越高,纳米管管径越大,表面的覆盖物越多,最佳的水含量为1％(体积分数).经450℃热处理2h后TiO2纳米管阵列的结构由无定形转变为锐钛矿型.

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